The value of MRI in evaluating the efficacy and complications with the treatment of intra-arterial chemotherapy for retinoblastoma
Metrics: PDF 1436 views | HTML 2387 views | ?
Shuxian Chen1,*, Xunda Ji2,*, Ming Liu1, Zhengrong Xia1, Hui Zheng1, Qiufeng Yin1, He Wang3, Yuhua Li1
1Department of Radiology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
2Department of Ophthalmology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
3Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai 200433, China
*These authors have contributed equally to this work
Yuhua Li, email: [email protected]
He Wang, email: [email protected]
Keywords: retinoblastoma, intra-arterial chemotherapy, MRI, ADC value, children
Received: December 23, 2016 Accepted: March 14, 2017 Published: March 21, 2017
Retinoblastoma is the most common intraocular malignant tumor of childhood. Intra-arterial chemotherapy (IAC) is a recently popularized technique used for the treatment of retinoblastoma, to decrease mortality, increase preservation of the eye, and prevent blindness. Along with the extensive use of IAC, it is important to apply noninvasive examination methods to assess the activity of the tumor and the risk factors for disease dissemination without histopathological confirmation. There are few studies that have assessed the value of magnetic resonance imaging (MRI) in evaluating the efficacy and complications of IAC for retinoblastoma. We retrospectively analyzed the MRI features of 60 patients with unilateral retinoblastoma given the primary treatment of IAC from January 2014 to February 2016 in our hospital. Our study showed that MRI could well assess the decreased activity of the tumor after IAC, presenting with diminished tumor size, increased apparent diffusion coefficient (ADC) values (from 0.94 ± 0.24 × 10−3 mm2/s to 2.24 ± 0.40 × 10−3 mm2/s), and a reduced degree of enhancement of the tumor. Our study also showed that MRI can monitor the risk factors of abnormal enhancement of the postlaminar optic nerve, to avoid unnecessary enucleation. Meanwhile, the results showed that the main late complications after IAC included affected eyeball volume reduction, subretinal hemorrhage, vitreous hemorrhage, vitreous opacity, cataractous len, and choroidal vascular ischemia.
All site content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 License.